Every day we lose water when we sweat, breath, and go to the bathroom. When we lose more water than we replenish, we can experience the effects of dehydration, and it can be more common than you might think.
Two-thirds of the human body is made of water, so when you don’t drink enough to replenish the amount that your body naturally loses due to daily functioning, or something more strenuous, like exercise or heat, the consequences might be serious!
By the time we feel thirsty and have the urge to drink (and this threshold can be even greater for older people), it’s already too late.
So drinking water regularly, even if you aren’t feeling urgently thirsty, is a good habit to maintain. But how much water should you drink every day? The old adage "eight glasses a day”* is actually a pretty good rule of thumb to follow—but depending on your level of daily activity, your environment, and your general state of health. A last thing to remember: we often confuse thirst with hunger, so before breaking out the chips, try downing a glass of H2O!